659
CXHW53 PHFO 011625
CLMITO
CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
625 AM HST SUN JUN 01 2025
...............................
..THE HILO HI CLIMATE SUMMARY FOR THE MONTH OF MAY 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1949 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 94 05/20/1966
LOW 37 05/24/2024
HIGHEST 85 05/04 81 4 85 05/13
05/31
05/15
LOWEST 65 05/15 67 -2 58 05/23
05/19
AVG. MAXIMUM 82.8 80.7 2.1 81.0
AVG. MINIMUM 67.1 67.3 -0.2 67.8
MEAN 75.0 74.0 1.0 74.4
DAYS MAX >= 93 0 0
DAYS MAX >= 90 0 0
DAYS MAX <= 80 2 10
DAYS MIN >= 72 0 1
DAYS MIN <= 60 0 0
DAYS MIN <= 55 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 25.01 1964
MINIMUM 1.18 1945
TOTALS 4.51 6.99 -2.48 9.75
DAILY AVG. 0.15 0.23 -0.08 0.31
DAYS >= .01 28 22.9 5.1 29
DAYS >= .10 13 14.2 -1.2 20
DAYS >= .50 1 3.8 -2.8 5
DAYS >= 1.00 0 1.3 -1.3 2
GREATEST
24 HR. TOTAL 0.82 05/15 TO 05/16 2.41
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 317 279 38 291
SINCE 1/1 1383 1090 293 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.4
HIGHEST WIND SPEED/DIRECTION 21/110 DATE 05/17
HIGHEST GUST SPEED/DIRECTION 29/100 DATE 05/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.65
NUMBER OF DAYS FAIR 1
NUMBER OF DAYS PC 21
NUMBER OF DAYS CLOUDY 9
AVERAGE RH (PERCENT) 74
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM MM MIXED PRECIP MM
HEAVY RAIN 9 RAIN 14
LIGHT RAIN 25 FREEZING RAIN MM
LT FREEZING RAIN MM HAIL MM
HEAVY SNOW MM SNOW MM
LIGHT SNOW MM SLEET MM
FOG 22 FOG W/VIS <= 1/4 MILE MM
HAZE 10
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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